Koch ALDUP/40 Series User Manual page 2

User manual
Overview of the device
Loudspeaker
Control button UP 
Control button
DOWN 
□
Display button
○
Function button
Red LED (left):
Mute, Additional
functions
Microphone
Loudspeaker
Control button UP 
Control button
DOWN 
□
Display button
○
Function button
Red LED (left):
Mute, Additional
functions
Microphone
2/4
ALDUP/40ef
Unlock button
Talk button
Green LED (right):
Call at door,
Talk mode active
ALDUP/40ws
Unlock button
Talk button
Green LED (right):
Call at door,
Talk mode active